Seiko Cal. 3840 - 108

The 3840-108 is a sought-after Solar piece from Seiko's golden era. Powered by the 3840 caliber with 28j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-ff056660d451]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1978

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