Seiko Cal. 6641 - 840

The Seiko 6641-840 represents an important milestone in Seiko's 1986 lineup. It features a Navy dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-b68c66035b53]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1986

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