Seiko Cal. 4577 - 677

Seiko 4577-677

This Hand-Winding model from 1995 features a 42mm Hardlex-Coated Steel case. Powered by the 4577 caliber with 19j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-7fdc4d1cfcdb]

Also known as: Monster, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
White
Jewels
19j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1995

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