Seiko Cal. 6641 - 312

This Quartz model from 1970 features a 37mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-2851aab84acb]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1970

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