Seiko Cal. 4415 - 359

This Spring Drive model from 1980 features a 36mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-bbff3310def4]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1980

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