Seiko Cal. 3818 - 909

The Seiko 3818-909 represents an important milestone in Seiko's 1991 lineup. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-207a3dbe6e4a]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1991

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