Seiko Cal. 4486 - 911

The Seiko 4486-911 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0f8e1f176f98]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1977

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