Seiko Cal. 5685 - 984

The 5685-984 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5685 caliber with 28j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-99791a1d9f49]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1977

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