Seiko Cal. 6618 - 516

This Spring Drive model from 1988 features a 44mm Titanium case. Powered by the 6618 caliber with 32j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-39ff9fe807f7]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1988

Related Models

• Seiko 4432-234
• Seiko 7183-903
• Seiko 7174-278
• Seiko 6691-284
• Seiko 5296-917
• Seiko 4534-848
• Seiko 7075-132
• Seiko 4594-369
• Seiko 6332-602
• Seiko 4418-909
• Seiko 4541-970
• Seiko 0738-292