Seiko Cal. 4548 - 183

This Automatic model from 1970 features a 45mm Titanium case. Powered by the 4548 caliber with 28j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-30a601eda37c]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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