Seiko Cal. 3840 - 776

The 3840-776 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3840 caliber with 23j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-fc0bf42743e9]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1991

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