Seiko Cal. 6665 - 363

The Seiko 6665-363 represents an important milestone in Seiko's 1965 lineup. With its 21mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-5062c35371d0]

Also known as: Tuna, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1965

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