Seiko Cal. 3818 - 300

The Seiko 3818-300 represents an important milestone in Seiko's 1977 lineup. Powered by the 3818 caliber with 18j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-3cd90f0e2d76]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1977

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