Seiko Cal. 3831 - 699

The Seiko 3831-699 represents an important milestone in Seiko's 1968 lineup. Powered by the 3831 caliber with 26j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-c56af93aba7d]

Also known as: Panda, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1968

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