Seiko Cal. 6237 - 252

This Hand-Winding model from 1980 features a 46mm Stainless Steel case. Powered by the 6237 caliber with 21j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-ef6b3a11754a]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1980

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