Seiko Cal. 6637 - 723

This Hand-Winding model from 1995 features a 38mm Gold-Plated case. Powered by the 6637 caliber with 20j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-e38956809133]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1995

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