Seiko Cal. 5630 - 918

The 5630-918 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-26533b478819]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1983

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