Seiko Cal. 6634 - 838

Released in 1988, the Cal. 6634 with design code 838 was part of Seiko's domestic market collection. Powered by the 6634 caliber with 31j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f2feed295fcf]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1988

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