Seiko Cal. 4415 - 502

The 4415-502 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4415 caliber with 17j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-e8e915ac79b0]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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