Seiko Cal. 7138 - 587

Seiko 7138-587

The 7138-587 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7138 caliber with 33j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-e45d90ff1e60]

Also known as: Tuna, Bullhead

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
35mm
Case Thickness
14.0mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
White
Jewels
33j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1990

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