Seiko Cal. 4439 - 801

The 4439-801 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4439 caliber with 28j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-4a44e906a1bc]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1985

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