Seiko Cal. 6634 - 815

This Automatic model from 1972 features a 37mm Hardlex-Coated Steel case. With its 18mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-a2bfc5daeaa3]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1972

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