Seiko Cal. 6650 - 915

This Hand-Winding model from 1968 features a 40mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-006df2c5c7d3]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1968

Related Models

• Seiko 6181-743
• Seiko 7022-109
• Seiko 6371-645
• Seiko 6660-310
• Seiko 7189-117
• Seiko 6249-235
• Seiko 6281-410
• Seiko 7135-801
• Seiko 6691-480
• Seiko 6364-955
• Seiko 7173-465
• Seiko 5231-879