Seiko Cal. 6641 - 726

The Seiko 6641-726 represents an important milestone in Seiko's 1989 lineup. It features a White dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-e5cee52afd47]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1989

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