Seiko Cal. 6635 - 464

The 6635-464 is a sought-after Solar piece from Seiko's golden era. Powered by the 6635 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-f55ae0287fcd]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1967

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