Seiko Cal. 4439 - 638

Seiko 4439-638

This Automatic model from 1973 features a 36mm Titanium case. Powered by the 4439 caliber with 25j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-3c793decde39]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
36mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1973

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seikata-wm-3c793decde39