Seiko Cal. 6660 - 963

The Seiko 6660-963 represents an important milestone in Seiko's 1965 lineup. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-57762d48b941]

Also known as: Monster, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1965

Related Models

• Seiko 4493-445
• Seiko 6358-526
• Seiko 5684-874
• Seiko 7198-807
• Seiko 5694-176
• Seiko 6644-426
• Seiko 6611-725
• Seiko 7013-578
• Seiko 5216-392
• Seiko 4581-604
• Seiko 5232-542
• Seiko 4590-287