Seiko Cal. 3876 - 540

The Seiko 3876-540 represents an important milestone in Seiko's 1969 lineup. Powered by the 3876 caliber with 27j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-23a3f000eae3]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1969

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