Seiko Cal. 6610 - 747

Released in 1978, the Cal. 6610 with design code 747 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-01d4cb219cba]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1978

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