Seiko Cal. 3841 - 631

The 3841-631 is a sought-after Solar piece from Seiko's golden era. Powered by the 3841 caliber with 25j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-beea4defd2aa]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1969

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