Seiko Cal. 6366 - 643

This Quartz model from 1977 features a 41mm Gold-Plated case. Powered by the 6366 caliber with 20j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-962a8a18c292]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1977

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