Seiko Cal. 6638 - 249

The 6638-249 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-fe42f578369a]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1971

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