Seiko Cal. 7159 - 638

Seiko 7159-638

The 7159-638 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7159 caliber with 26j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-768cd3414e96]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
8.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Black
Jewels
26j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1990

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seikata-wm-768cd3414e96