Seiko Cal. 4498 - 522

The 4498-522 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4498 caliber with 22j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-6de2e1e8477a]

Also known as: Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

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