Seiko Cal. 4577 - 767

Seiko 4577-767

This Quartz model from 1970 features a 42mm Stainless Steel case. Powered by the 4577 caliber with 36j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-0dc01dd0a1f5]

Also known as: Bullhead, Helmet

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
13.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1970

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