Seiko Cal. 6637 - 146

The 6637-146 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6637 caliber with 35j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-acdb2c71f04f]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1989

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