Seiko Cal. 5240 - 436

Seiko 5240-436

This Hand-Winding model from 1969 features a 40mm Titanium case. Powered by the 5240 caliber with 35j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-13b27a0f8522]

Also known as: World Timer

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
40mm
Case Thickness
14.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
150m
Dial Color
Cream
Jewels
35j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1969

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seikata-wm-13b27a0f8522