Seiko Cal. 5684 - 417

The 5684-417 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5684 caliber with 28j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-cfbd32fb800a]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1977

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