Seiko Cal. 4430 - 780

This Hand-Winding model from 1991 features a 44mm Two-Tone case. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-7de9d798e6b4]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1991

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