Seiko Cal. 3827 - 717

The 3827-717 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3827 caliber with 20j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-0a8d8619fa03]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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