Seiko Cal. 3841 - 630

The Seiko 3841-630 represents an important milestone in Seiko's 1975 lineup. Powered by the 3841 caliber with 31j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-fc77551c9f10]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1975

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