Seiko Cal. 4537 - 244

Seiko 4537-244

This Automatic model from 1973 features a 40mm Hardlex-Coated Steel case. Powered by the 4537 caliber with 19j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-7e3686d01e53]

Also known as: Bellmatic, Navigator

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1973

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