Seiko Cal. 6699 - 331

The Seiko 6699-331 represents an important milestone in Seiko's 1978 lineup. It features a Silver dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-e2fce7fad630]

Also known as: Turtle, Crown

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1978

Related Models

• Seiko 5615-454
• Seiko 6333-811
• Seiko 6297-536
• Seiko 3888-850
• Seiko 7014-214
• Seiko 7143-874
• Seiko 7174-102
• Seiko 3813-250
• Seiko 6293-689
• Seiko 7123-116
• Seiko 0724-834
• Seiko 4529-673