Seiko Cal. 3867 - 623

The Seiko 3867-623 represents an important milestone in Seiko's 1973 lineup. Powered by the 3867 caliber with 24j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-ef0a0666c739]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1973

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