Seiko Cal. 6137 - 642

This Spring Drive model from 1977 features a 40mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-94892141c977]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1977

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