Seiko Cal. 6639 - 165

This Quartz model from 1977 features a 45mm Hardlex-Coated Steel case. Powered by the 6639 caliber with 34j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-640e3de9f849]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1977

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