Seiko Cal. 4536 - 980

The Seiko 4536-980 represents an important milestone in Seiko's 1985 lineup. Powered by the 4536 caliber with 28j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-3a57b8ae5501]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1985

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