Seiko Cal. 4491 - 627

Released in 1991, the Cal. 4491 with design code 627 was part of Seiko's domestic market collection. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-de3be8e4ee25]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1991

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