Seiko Cal. 4536 - 151

The Seiko 4536-151 represents an important milestone in Seiko's 1974 lineup. Powered by the 4536 caliber with 31j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-a2846f4bdda4]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1974

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