Seiko Presage Cocktail Time SRPE45J1 “Mojito” Automatic Men’s Watch – Green Dial & Brown Leather Strap

Seiko Presage Cocktail Time SRPE45J1 “Mojito” Automatic Men's Watch

The Seiko Presage Cocktail Time SRPE45J1, popularly known as the “Mojito”, combines Japanese mechanical watchmaking with one of the most distinctive green dials in the Presage Cocktail Time collection.

Its rich green textured dial features a gradated finish, gold-tone hands, applied Arabic numerals and hour markers, creating a sophisticated contrast against the polished stainless-steel case and brown leather strap.

Inside is Seiko's Caliber 4R35 automatic movement with manual winding capability, 23 jewels, stop-seconds functionality and A date window at 3 o'clock adds everyday practicality without taking attention away from the detailed dial.

Key Features

• Seiko Presage Cocktail Time collection
• Reference: SRPE45J1 / SRPE45
• Popular “Mojito” design
• 38.5 mm stainless-steel case
• 15 mm case thickness
• Approx. 44 mm 
• 20 mm lug width
• Rich green gradated textured dial
• Gold-tone hands and hour markers
• Arabic numeral detailing
• Seiko Caliber 4R35 automatic movement
• Manual winding capability
• Stop-seconds / hacking function
• Date display at 3 o'clock
• Box-shaped Hardlex crystal
• Brown leather strap
• See-through case back
• 50M / 5 Bar water resistance

Product Specifications

The Signature Green “Mojito” Dial

A Dial Designed to Capture Attention

The dial is the defining feature of the Presage SRPE45J1. Its rich green colour is combined with an intricate pressed pattern and glossy gradated finish that creates changing highlights as the watch moves under different lighting conditions.

Gold-tone hands, applied markers and Arabic numerals create a warm contrast against the deep green background, while the polished stainless-steel case provides a clean frame around the dial.

Vintage-Inspired Arabic Numerals

The stylised Arabic numerals and applied hour markers contribute to the watch's distinctive Cocktail Time character, combining vintage-inspired detailing with contemporary Japanese dress-watch design.

Seiko Caliber 4R35 Automatic Movement

Mechanical Timekeeping

At the heart of the SRPE45J1 is Seiko's Caliber 4R35, a 23-jewel automatic mechanical movement.

The movement automatically winds through normal wrist motion and can also be wound manually through the crown, giving the wearer greater control when restarting the watch after it has stopped.

Stop-Seconds Function

The movement includes a stop-seconds or hacking function, allowing the seconds hand to stop while setting the time for more precise adjustment.

Practical Date Display

A framed date window positioned at 3 o'clock provides useful everyday calendar functionality while integrating naturally into the green and gold dial design.

38.5 mm Stainless-Steel Case

Classic Dress-Watch Proportions

The SRPE45J1 measures approximately 38.5 mm in diameter and 11.8 mm thick, creating balanced proportions suitable for both formal and everyday wear.

Its approximately 45.4 mm lug-to-lug measurement helps keep the watch compact on the wrist despite the visually detailed dial.

Box-Shaped Hardlex Crystal

A box-shaped Hardlex crystal protects the dial while contributing to the watch's slightly vintage-inspired profile. The raised crystal also helps create visual depth when viewing the textured dial from different angles.

Brown Leather Strap

Classic Green & Brown Combination

The brown leather strap complements the deep green dial and warm gold-tone details, creating a sophisticated colour combination suitable for dress and smart-casual outfits.

The watch uses a 20 mm lug width, which also provides a broad range of compatible replacement-strap options.

See-Through Case Back

View the Mechanical Movement

A transparent exhibition case back provides a view of the mechanical movement inside the watch, reinforcing the mechanical character of the Presage collection.

50M Water Resistance

The Seiko Presage SRPE45J1 is rated to 50 metres / 5 Bar water resistance.

For a leather-strap dress watch, avoiding unnecessary water exposure is recommended. Keep the leather strap away from prolonged moisture, bathing, hot showers, steam and underwater use to help preserve its condition.

Designed for Refined Styling

Business & Office Wear

The polished stainless-steel case, leather strap and sophisticated green dial work naturally with shirts, suits, blazers and business-casual clothing.

Formal Occasions

Its compact proportions and mechanical dress-watch character make the SRPE45J1 particularly suitable for dinners, weddings, celebrations and formal events.

Smart-Casual Wear

The green dial gives the watch enough personality to pair equally well with chinos, polos, knitwear and casual button-down shirts.

Why Choose the Presage SRPE45J1?

• Distinctive green textured Cocktail Time dial
• Elegant gold-tone hands and markers
• Balanced 38.5 mm case size
• Seiko Caliber 4R35 automatic movement
• Manual winding capability
• 23-jewel mechanical movement
• Stop-seconds function
• Practical date display
• Stainless-steel case
• Box-shaped Hardlex crystal
• Brown leather strap
• See-through case back
• 50M / 5 Bar water resistance
• Excellent dress, business and smart-casual styling

Watch Care Instructions

• Clean the case and crystal using a soft microfiber cloth.
• Keep the leather strap away from prolonged moisture.
• Avoid perfume, alcohol and harsh chemicals on the leather strap.
• Protect the Hardlex crystal from hard impacts and abrasive surfaces.
• Avoid operating the crown while the watch is wet.
• Avoid hot showers, sauna and steam.
• Allow a damp leather strap to dry naturally at room temperature.
• Keep the watch away from strong magnetic fields.
• Mechanical watches may require periodic servicing for long-term performance.

Frequently Asked Questions

What is the case size of the Seiko Presage SRPE45J1?

The SRPE45J1 has a 38.5 mm stainless-steel case diameter with an approximately 45.4 mm lug-to-lug measurement.

What is the case thickness?

The Seiko Presage SRPE45J1 measures approximately 11.8 mm thick.

Is the SRPE45J1 an automatic watch?

Yes. It uses Seiko's Caliber 4R35 automatic mechanical movement and also supports manual winding.

How long is the power reserve?

The Caliber 4R35 provides approximately 41 hours of power reserve when sufficiently wound.

How many jewels does the movement have?

The Seiko Caliber 4R35 contains 23 jewels.

Does the watch have a date display?

Yes. A framed date window is positioned at 3 o'clock.

What type of crystal does it use?

The SRPE45J1 uses a box-shaped Hardlex crystal.

What material is the case?

The case is made from stainless steel.

What material is the strap?

The SRPE45J1 is supplied with a brown leather strap. The lug width is approximately 20 mm.

Can you see the automatic movement?

Yes. The watch features a see-through case back that allows the mechanical movement to be viewed.

Is the Seiko Presage SRPE45J1 water resistant?

Yes. It is rated to 50M / 5 Bar water resistance. Because it uses a leather strap, unnecessary or prolonged water exposure should still be avoided.

Why is this model called “Mojito”?

The SRPE45 is commonly nicknamed “Mojito” because of its rich green Cocktail Time dial and its association with the cocktail-inspired Presage series.