Seiko Cal. 4531 - 383

The 4531-383 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4531 caliber with 31j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-131bd175e827]

Also known as: UFO, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1993

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