Seiko Cal. 6637 - 432

This Solar model from 1968 features a 44mm Titanium case. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-c4553fb8c1bf]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1968

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