Seiko Cal. 6630 - 411

The Seiko 6630-411 represents an important milestone in Seiko's 1969 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-b47922eed1b1]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1969

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