Seiko Cal. 6650 - 678

The Seiko 6650-678 represents an important milestone in Seiko's 1967 lineup. It features a Green dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-17d7318d4e3d]

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1967

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