Seiko Cal. 3856 - 930

The Seiko 3856-930 represents an important milestone in Seiko's 1978 lineup. Powered by the 3856 caliber with 34j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-820963b8cac4]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1978

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