Seiko Cal. 6678 - 377

The Seiko 6678-377 represents an important milestone in Seiko's 1977 lineup. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-37f80f08f7c5]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1977

Related Models

• Seiko 6134-470
• Seiko 3865-646
• Seiko 7082-308
• Seiko 6691-772
• Seiko 4558-705
• Seiko 4421-627
• Seiko 5660-405
• Seiko 3857-970
• Seiko 6232-455
• Seiko 6260-227
• Seiko 5658-188
• Seiko 4544-635