Seiko Cal. 6637 - 922

The 6637-922 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-69261f118a22]

Also known as: Samurai, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1978

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