Seiko Cal. 4531 - 991

This Hand-Winding model from 1997 features a 38mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-dd15b2dfd99a]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1997

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