Seiko Cal. 4526 - 731

Seiko 4526-731

The 4526-731 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4526 caliber with 32j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-a98b2e92aede]

Also known as: Sumo, Bullhead

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
10.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
90m
Dial Color
Navy
Jewels
32j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1987

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