Seiko Cal. 7156 - 597

Seiko 7156-597

The 7156-597 is a sought-after Solar piece from Seiko's golden era. Powered by the 7156 caliber with 24j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-6e953f27f9db]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1965

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