Seiko Cal. 7146 - 638

Seiko 7146-638

The 7146-638 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7146 caliber with 30j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-a48502bae5ba]

Also known as: Rally

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Navy
Jewels
30j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1966

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