Seiko Cal. 6165 - 727

This Spring Drive model from 1965 features a 37mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-43d2b9cf948f]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1965

Related Models

• Seiko 5221-619
• Seiko 0780-675
• Seiko 0715-275
• Seiko 6383-522
• Seiko 6614-663
• Seiko 4545-957
• Seiko 5289-586
• Seiko 6690-483
• Seiko 5282-106
• Seiko 5685-936
• Seiko 7194-814
• Seiko 4485-979