Seiko Cal. 5640 - 623

This Quartz model from 1982 features a 41mm Gold-Plated case. Powered by the 5640 caliber with 36j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-6b55f1fc86eb]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1982

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