Seiko Cal. 6637 - 913

This Quartz model from 1975 features a 44mm Titanium case. With its 20mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-46e90c3e292e]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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