Seiko Cal. 6638 - 479

The 6638-479 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6638 caliber with 32j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-da9807b64185]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1994

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