Seiko Cal. 7188 - 139

Seiko 7188-139

The 7188-139 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7188 caliber with 34j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-0e9e0c01d56d]

Also known as: Monster, World Timer

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
37mm
Case Thickness
9.8mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
50m
Dial Color
White
Jewels
34j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1980

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