Seiko Cal. 7138 - 303

Seiko 7138-303

This Automatic model from 1974 features a 44mm Titanium case. Powered by the 7138 caliber with 31j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-5f2cb58bf23a]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
44mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1974

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