Seiko Cal. 7153 - 420

This Spring Drive model from 1981 features a 41mm Titanium case. Powered by the 7153 caliber with 36j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-7ffaaa399b5e]

Also known as: Turtle, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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