Seiko Cal. 5225 - 390

The 5225-390 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5225 caliber with 21j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-6b6bd38ff397]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1979

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