Seiko Cal. 3818 - 255

The 3818-255 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-62e41cb2cfa6]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1974

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