Seiko Cal. 5615 - 531

This Spring Drive model from 1968 features a 34mm PVD Black case. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-d538a9943ce1]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1968

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