Seiko Cal. 6217 - 631

The 6217-631 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6217 caliber with 17j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-3662968e8429]

Also known as: Monster, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1975

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