Seiko Cal. 6665 - 511

The Seiko 6665-511 represents an important milestone in Seiko's 1990 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-c074b8d3d7dc]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1990

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