Seiko Cal. 4537 - 310

Seiko 4537-310

The 4537-310 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4537 caliber with 20j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-ee9653710cec]

Also known as: Sumo

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1977

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seikata-wm-ee9653710cec