Seiko Cal. 4439 - 861

This Hand-Winding model from 1997 features a 37mm PVD Black case. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-f0b19f80246e]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1997

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