Seiko Cal. 7112 - 853

This Spring Drive model from 1978 features a 37mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-cf8df46f712e]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1978

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