Seiko Cal. 4440 - 235

Seiko 4440-235

This Hand-Winding model from 1984 features a 37mm Titanium case. Powered by the 4440 caliber with 22j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-d77c1fd6b0fa]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
13.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1984

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