Seiko Cal. 6639 - 165

Seiko 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

Related Models

seikata-wm-640e3de9f849