Seiko Cal. 4593 - 257

Seiko 4593-257

The 4593-257 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4593 caliber with 18j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-1bd1fdc6753b]

Also known as: Bullhead

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1991

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