Seiko Cal. 6647 - 355

The Seiko 6647-355 represents an important milestone in Seiko's 1971 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-c53ad3586d8d]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1971

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