Seiko Cal. 4477 - 375

Seiko 4477-375

This Hand-Winding model from 1989 features a 37mm Hardlex-Coated Steel case. Powered by the 4477 caliber with 28j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-249e51a40949]

Also known as: Sumo, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
14.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Burgundy
Jewels
28j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1989

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seikata-wm-249e51a40949