OMEGA MARINE “FIRST DIVER’S WATCH” REF. CK 679

Brand

Model

Reference

Year

Case number

Case material

Case dimensions

Movement

Functions

Dial

Bracelet

Accessories

Condition

Description

Omega

Marine “First Diver’s Watch”

CK 679

1938

N/A

Stainless steel, rectangular double-case construction with patented sealing system (Marine case)

23 x 34 mm

Manual winding mechanical, calibre 19.4 SOB T2 Omega

Hours, minutes, small seconds

Original dial, Arabic numerals and indexes, small seconds, signed Omega

Anonymous stainless steel bracelet

None

Very good; original dial in excellent condition, case with normal signs of age

A rare and historically significant Omega Marine wristwatch, reference CK 679, produced in 1938, widely regarded as the brand’s first true diver’s watch.

This model represents a milestone in underwater horology thanks to its innovative patented double-case construction, designed to ensure water resistance at a time when such capability was extremely uncommon. The system features an inner case housing the movement, protected by an outer sealed shell.

Powered by a manual winding calibre 19.4 SOB T2, this example features a stunning original dial with Arabic numerals and a small seconds subdial, reflecting the functional aesthetic of the 1930s.

Often cited as one of the earliest diver’s watches ever produced by Omega, the Marine CK 679 remains an exceptionally rare and highly collectible timepiece today.