Seiko Cal. 4545 - 552

This Spring Drive model from 1970 features a 39mm Titanium case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-722a8e5665e6]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1970

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