Seiko Cal. 3876 - 621

The Seiko 3876-621 represents an important milestone in Seiko's 1965 lineup. Powered by the 3876 caliber with 26j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-388ff9399c3f]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1965

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