Seiko Cal. 4530 - 522

The Seiko 4530-522 represents an important milestone in Seiko's 1977 lineup. Powered by the 4530 caliber with 21j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-937cb7d487a6]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1977

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