Seiko Cal. 3818 - 603

The Seiko 3818-603 represents an important milestone in Seiko's 1976 lineup. Powered by the 3818 caliber with 24j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-a369d464b57a]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1976

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