Seiko Cal. 3828 - 742

The Seiko 3828-742 represents an important milestone in Seiko's 1992 lineup. Powered by the 3828 caliber with 18j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-8f1d95c216fe]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1992

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