Seiko Cal. 5231 - 717

This Hand-Winding model from 1991 features a 39mm PVD Black case. It features a Cream dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-105f8fea7241]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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