Seiko Cal. 6637 - 261

This Kinetic model from 1972 features a 39mm Titanium case. Powered by the 6637 caliber with 26j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-64b2999fa888]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1972

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