Seiko Cal. 3815 - 891

The Seiko 3815-891 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-9d1ab41e8aac]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1971

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