Seiko Cal. 6691 - 628

This Quartz model from 1966 features a 35mm PVD Black case. It features a Champagne dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-c67cda3c2f32]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1966

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