Seiko Cal. 4561 - 543

Seiko 4561-543

This Automatic model from 1978 features a 35mm Hardlex-Coated Steel case. Powered by the 4561 caliber with 31j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-51b57846bf44]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
10.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
31j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1978

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