Seiko Cal. 3899 - 731

The Seiko 3899-731 represents an important milestone in Seiko's 1982 lineup. Powered by the 3899 caliber with 30j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-99f1149bb177]

Also known as: Panda, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1982

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