Seiko Cal. 0791 - 636

The 0791-636 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0791 caliber with 33j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-8333e8633063]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1972

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