Seiko Cal. 7158 - 837

Seiko 7158-837

The Seiko 7158-837 represents an important milestone in Seiko's 1984 lineup. Powered by the 7158 caliber with 23j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-5b575865627e]

Also known as: Sumo, Navigator

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
13.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Silver
Jewels
23j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1984

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seikata-wm-5b575865627e