Seiko Cal. 3859 - 821

The 3859-821 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3859 caliber with 30j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-49cf81ec5985]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1997

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