Seiko Cal. 4485 - 320

This Spring Drive model from 1977 features a 39mm Titanium case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-476256ddd3c6]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1977

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