Seiko Cal. 3857 - 976

This Spring Drive model from 1994 features a 40mm Stainless Steel case. Powered by the 3857 caliber with 31j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-156b5fb1a3ff]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1994

Related Models

• Seiko 7173-520
• Seiko 4547-815
• Seiko 6256-249
• Seiko 6313-801
• Seiko 5666-881
• Seiko 6338-881
• Seiko 5647-681
• Seiko 5283-342
• Seiko 0710-469
• Seiko 7034-744
• Seiko 4573-251
• Seiko 4476-977