Seiko Cal. 4531 - 110

The 4531-110 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4531 caliber with 21j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-9c8d69ca7135]

Also known as: Monster, Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1988

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