Seiko Cal. 6646 - 171

The Seiko 6646-171 represents an important milestone in Seiko's 1971 lineup. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-d054b0d2ce2e]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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