Seiko Cal. 3810 - 366

The Seiko 3810-366 represents an important milestone in Seiko's 1980 lineup. Powered by the 3810 caliber with 27j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-81304ecf1ea1]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1980

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