Seiko Cal. 3816 - 431

The 3816-431 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3816 caliber with 31j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-f6bf474218ab]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1997

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