Seiko Cal. 5231 - 147

This Spring Drive model from 1982 features a 44mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-e758f3c3c146]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1982

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