Seiko Cal. 3874 - 921

The 3874-921 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3874 caliber with 28j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-fe67de0f52fc]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1968

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