Seiko Cal. 6645 - 749

This Hand-Winding model from 1976 features a 39mm Gold-Plated case. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-2c4987552c86]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1976

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