Seiko Cal. 6310 - 172

This Spring Drive model from 1988 features a 44mm Stainless Steel case. Powered by the 6310 caliber with 23j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-ba1e8c4cbec7]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1988

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