Seiko Cal. 4521 - 561

Seiko 4521-561

This Automatic model from 1975 features a 41mm Hardlex-Coated Steel case. Powered by the 4521 caliber with 22j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-dc7f21fbbdf0]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
11.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Black
Jewels
22j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1975

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