Seiko Cal. 4438 - 568

Seiko 4438-568

This Kinetic model from 1970 features a 38mm Hardlex-Coated Steel case. Powered by the 4438 caliber with 24j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-8e5a937b289b]

Also known as: Monster, Helmet

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
130m
Dial Color
Navy
Jewels
24j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1970

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