Seiko Cal. 6650 - 687

This Automatic model from 1972 features a 37mm PVD Black case. It features a Silver dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-ba3387c6c23b]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1972

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