Seiko Cal. 0731 - 587

Seiko 0731-587

The 0731-587 is a sought-after Quartz piece from Seiko's golden era. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-296545117f7c]

Also known as: Sumo

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
40mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
40m
Dial Color
Green
Jewels
28j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1969

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seikata-wm-296545117f7c