Seiko Cal. 5650 - 654

This Spring Drive model from 1976 features a 42mm Gold-Plated case. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-f07529bf1305]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1976

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