Seiko Cal. 6630 - 340

The Seiko 6630-340 represents an important milestone in Seiko's 1967 lineup. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-44769dd8ca3e]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1967

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