Seiko Cal. 6630 - 347

This Hand-Winding model from 1970 features a 46mm Gold-Plated case. With its 21mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-39369b45ce86]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1970

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