Seiko Cal. 3880 - 646

The Seiko 3880-646 represents an important milestone in Seiko's 1998 lineup. Powered by the 3880 caliber with 20j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-cf07f4c2faa1]

Also known as: Shogun, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1998

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