Seiko Cal. 5685 - 940

The Seiko 5685-940 represents an important milestone in Seiko's 1969 lineup. Powered by the 5685 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-3a31ee83851f]

Also known as: Monster, Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1969

Related Models

• Seiko 4526-778
• Seiko 6373-820
• Seiko 6247-594
• Seiko 5627-525
• Seiko 4528-569
• Seiko 0752-508
• Seiko 4479-937
• Seiko 6252-554
• Seiko 4449-197
• Seiko 6644-439
• Seiko 4480-414
• Seiko 4525-180