Seiko Cal. 6647 - 539

The Seiko 6647-539 represents an important milestone in Seiko's 1969 lineup. It features a Silver dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-3ec8089910a2]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1969

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