Seiko Cal. 7057 - 523

Seiko 7057-523

This Automatic model from 1965 features a 45mm Hardlex-Coated Steel case. Powered by the 7057 caliber with 20j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-f02c49bb0cf8]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
8.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1965

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