Seiko Cal. 4485 - 645

The Seiko 4485-645 represents an important milestone in Seiko's 1974 lineup. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-512118083913]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1974

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