Seiko Cal. 4433 - 139

Seiko 4433-139

The Seiko 4433-139 represents an important milestone in Seiko's 1974 lineup. Powered by the 4433 caliber with 20j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-83013aabcefc]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
12.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1974

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