What are the case specifications of the OMEGA?

The OMEGA features a Steel case.

What is the water resistance of the OMEGA?

The OMEGA has a water resistance rating of 30m (rain/splash).

What movement does the OMEGA use?

The OMEGA is powered by a Manual Winding, caliber 410.

When was the OMEGA produced?

The OMEGA CK 2691 has been in production from 1952 to 1958.

OMEGA CK 2691

Manual WindingSteel

Ref. CK 2691

Movement: 410Production: 1952 - 1958

Add to my inventory

Free account required - pre-fills all specs automatically

Last updated 5 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

CASE

Case Material

Steel

Water Resistance

30m

MOVEMENT

Movement Type

Manual Winding

Caliber

410

BRACELET/STRAP

Bracelet/Strap

Leather

Other watches with the 410 calibre

Show all →

OMEGA

BK 2671

Manual Winding

OMEGA

CK 2672

Manual WindingSteel

OMEGA

CK 2738

Steel

OMEGA

Seamaster

CK 2759

Manual WindingSteel

OMEGA

OT 14331

Manual Winding

OMEGA

OT 14362

Manual Winding

QUICK FACTS

BRAND

OMEGA

REFERENCE

CK 2691

MOVEMENT

Manual Winding

CALIBER

410

CASE MATERIAL

Steel

WATER RESISTANCE

30m (rain/splash)

PRODUCTION

1952 - 1958

Add to my inventory

Last updated 5 Oct 2026Suggest a correction

FOR WATCH DEALERS

Trading the OMEGA CK 2691?

Clone any catalog watch into your stock, sync it to Chrono24 and eBay, and invoice it with your own tax settings.

Explore dealer tools See inventory management

OMEGA CK 2691

TECHNICAL SPECIFICATIONS

CASE

MOVEMENT

BRACELET/STRAP

More from OMEGA

Pocket watch Medicus

1064 CK

1067

Constellation

De Ville

De Ville

Constellation My Choice

Constellation Ladies' Mini Quartz

Other watches with the 410 calibre

BK 2671

CK 2672

CK 2738

Seamaster

OT 14331

OT 14362

QUICK FACTS

FOR WATCH DEALERS