Seiko Cal. 4538 - 653

This Spring Drive model from 1982 features a 35mm Titanium case. Powered by the 4538 caliber with 18j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-b8277b3d9fa5]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1982

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