Seiko Cal. 3874 - 243

The Seiko 3874-243 represents an important milestone in Seiko's 1981 lineup. Powered by the 3874 caliber with 36j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-6587fea18483]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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