Seiko Cal. 3873 - 701

The Seiko 3873-701 represents an important milestone in Seiko's 1987 lineup. Powered by the 3873 caliber with 30j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-999f3a92ccf8]

Also known as: Tuna, UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1987

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