Seiko Cal. 3841 - 705

The Seiko 3841-705 represents an important milestone in Seiko's 1972 lineup. Powered by the 3841 caliber with 21j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-d5f5de2eaf24]

Also known as: Helmet, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1972

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