1 in stock

Omega Automatic Seamaster Calendar Ref. 2627-4 Cal. 353

This vintage Omega Seamaster Calendar, reference 2627-4, is a classic timepiece from circa 1951, powered by the iconic Cal. 353 “bumper” automatic movement with its signature copper-plated finish. The watch features a handsome gold-capped case over a stainless steel body, with a steel snap-on back and elegant, sharply faceted lugs. Its original silvered dial is beautifully preserved, featuring a combination of applied gilt arrowhead and Arabic numeral hour markers. A key feature of this early model is the date window located at the 6 o’clock position, which provides a pleasing symmetry to the design.

1 in stock

1 in stock

General

Brand

Model Line

Seamaster

reference

2627-4

Manufactured

Switzerland

Department

Men

Dial Color

Cream

Case

Case Shape

Round

Bezel

Smooth

Case Material

14k Gold

,

Stainless Steel

Case Width

34.5mm

Case Height

43mm

Strap / Bracelet

Lug Width

18mm

Strap Material

Leather

Strap Color

Green

Clasp

Buckle

Max Wrist Size

8.5"

Movement

Movement

Automatic

Caliber

Omega 353

Accuracy

>10 seconds

The movement showed a daily accuracy deviation ranging from 0 to 10 seconds across six positions.

Extras

Warranty Every watch sold by Ottuhr comes with a 1-year mechanical warranty. Select pieces may also include additional guarantees or extended coverage.

1-Year Ottuhr Warranty

Original Box

No

Original Papers

No

Overview

Before the Seamaster was a deep-sea diver’s tool, it was the quintessential gentleman’s watch for a life of action. Launched in 1948 and drawing heavily on Omega’s experience building robust watches for the British military during WWII, the Seamaster was the perfect synthesis of durability and elegance. The Seamaster Calendar, introduced a few years later, was a significant evolution, adding the modern convenience of a date complication to this legendary “go anywhere, do anything” design.

This watch hails from that golden era of the early 1950s, a time of incredible optimism and mechanical innovation. Beating at its heart is the Calibre 353, a magnificent example of Omega’s early “bumper” automatic movements. Unlike a modern automatic watch with a full 360-degree rotor, the oscillating weight in a bumper calibre bumps back and forth between two springs. It’s a design you can feel on the wrist, a gentle, tangible reminder of the intricate machine at work. To us, this tactile connection is one of the great joys of early automatic watchmaking.

This particular Reference 2627-4 is a stunning example of the model. The case is a handsome two-tone affair, with a thick gold cap over a robust stainless steel body, offering the warm look of solid gold with the durability of steel. Its silver dial is beautifully balanced, featuring a mix of applied gilt dart indices and Arabic numerals. What truly sets this model apart is the elegant placement of the date window at 6 o’clock, a feature that creates a wonderful vertical symmetry that was sadly lost in later designs. The sharp dauphine hands, a hallmark of the era, complete the timeless look.

Timing: The watch has been measured with a timegrapher at six different positions. The rate, amplitude, and beat error are within acceptable ranges.

Functions: All functions including the crown winding, time setting, etc are working as expected.

Integrity: The movement shows no signs of damage, rust, or corrosion, with all components appearing clean and well-maintained.

Authenticity: Each timepiece is evaluated and authenticated in-house. This watch is guaranteed to be correct to its manufacturer and time period.

Warranty: This timepiece includes a 1-year mechanical warranty, activated upon the date of purchase. 

Shipping: This timepeice includes complimentary insured shipping within all 50 states. 

Returns: If, for any reason, you are not entirely satisfied with your purchase, you may return the product for a full refund within 30 days from the date you received or signed for the item.

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