Seiko Cal. 6659 - 645

This Hand-Winding model from 1974 features a 38mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-32e1c98be7ca]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1974

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