Seiko Cal. 6620 - 156

This Automatic model from 1971 features a 37mm Stainless Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-a6a5aa08d53a]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1971

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