Seiko Cal. 6649 - 378

The Seiko 6649-378 represents an important milestone in Seiko's 1969 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-2b09e3a8beb3]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1969

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