Seiko Cal. 3840 - 628

The Seiko 3840-628 represents an important milestone in Seiko's 1988 lineup. Powered by the 3840 caliber with 29j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-6caa2fbb14e9]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1988

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