Seiko Cal. 6645 - 871

The Seiko 6645-871 represents an important milestone in Seiko's 1972 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-d10a77a6adbd]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1972

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