Seiko Cal. 3815 - 175

The Seiko 3815-175 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-80eab7b211cc]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1966

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