Seiko Cal. 3888 - 730

The Seiko 3888-730 represents an important milestone in Seiko's 1986 lineup. Powered by the 3888 caliber with 21j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-5ed20ef565b1]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1986

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