Seiko Cal. 4531 - 190

The 4531-190 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4531 caliber with 30j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-7565090f1a4b]

Also known as: Turtle, Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1979

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