Seiko Cal. 4420 - 746

The Seiko 4420-746 represents an important milestone in Seiko's 1987 lineup. With its 19mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-cc5860067865]

Also known as: Samurai, Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1987

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