Seiko Cal. 4536 - 108

The Seiko 4536-108 represents an important milestone in Seiko's 1980 lineup. Powered by the 4536 caliber with 25j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-a9b5ab53872f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1980

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