Seiko Cal. 4463 - 166

The Seiko 4463-166 represents an important milestone in Seiko's 1991 lineup. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-18c68cfe3e0d]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1991

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