Seiko Cal. 7137 - 198

Seiko 7137-198

The 7137-198 is a sought-after Solar piece from Seiko's golden era. Powered by the 7137 caliber with 20j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-107b3c9702c4]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
43mm
Case Thickness
12.2mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Black
Jewels
20j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1974

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seikata-wm-107b3c9702c4