Seiko Cal. 4545 - 552

This Automatic model from 1978 features a 45mm Titanium case. Powered by the 4545 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-9ec38bf10320]

Also known as: Helmet, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1978

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