Seiko Cal. 6647 - 525

The Seiko 6647-525 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-6cecd8985ff9]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1979

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