Seiko Cal. 5617 - 427

The 5617-427 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5617 caliber with 21j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-4b9b6feb73b9]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1970

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