Seiko Cal. 6634 - 749

Released in 1975, the Cal. 6634 with design code 749 was part of Seiko's domestic market collection. Powered by the 6634 caliber with 32j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-fac2aff09bdc]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1975

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