Seiko Cal. 4489 - 386

This Hand-Winding model from 1978 features a 37mm PVD Black case. With its 21mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-a9fe0dc6050d]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1978

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