Seiko Cal. 7193 - 331

Seiko 7193-331

The Seiko 7193-331 represents an important milestone in Seiko's 1981 lineup. Powered by the 7193 caliber with 28j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-98cb1a23d5fc]

Also known as: Helmet, Navigator

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
13.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Cream
Jewels
28j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1981

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