Seiko Cal. 6660 - 104

Released in 1975, the Cal. 6660 with design code 104 was part of Seiko's domestic market collection. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-27fa299daf6d]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

Related Models

• Seiko 4469-910
• Seiko 6395-439
• Seiko 3855-798
• Seiko 0794-821
• Seiko 0750-432
• Seiko 5218-782
• Seiko 4411-863
• Seiko 6693-401
• Seiko 6629-808
• Seiko 7014-292
• Seiko 3844-160
• Seiko 5645-459