Seiko Cal. 6634 - 125

The 6634-125 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6634 caliber with 28j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-a0388693622e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1975

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