Seiko Cal. 4530 - 250

The Seiko 4530-250 represents an important milestone in Seiko's 1973 lineup. Powered by the 4530 caliber with 20j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-e2d7390dc4d8]

Also known as: Crown, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1973

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