Seiko Cal. 6677 - 659

The Seiko 6677-659 represents an important milestone in Seiko's 1975 lineup. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-8effba3e59cd]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1975

Related Models

• Seiko 4450-598
• Seiko 4487-566
• Seiko 5245-850
• Seiko 5645-238
• Seiko 6240-521
• Seiko 4551-845
• Seiko 4416-982
• Seiko 6614-391
• Seiko 5226-653
• Seiko 6297-368
• Seiko 5610-237
• Seiko 5638-812