Seiko Cal. 5661 - 666

Released in 1976, the Cal. 5661 with design code 666 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-ba849931ff14]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1976

Related Models

• Seiko 4523-960
• Seiko 6319-921
• Seiko 4519-433
• Seiko 6644-659
• Seiko 0715-816
• Seiko 4595-781
• Seiko 7032-191
• Seiko 7122-264
• Seiko 7071-878
• Seiko 4582-989
• Seiko 6178-814
• Seiko 5656-914