Seiko Cal. 6620 - 678

The Seiko 6620-678 represents an important milestone in Seiko's 1992 lineup. It features a Silver dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-a9fee7f07b97]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1992

Related Models

• Seiko 5694-720
• Seiko 4426-990
• Seiko 6149-104
• Seiko 4540-115
• Seiko 7040-275
• Seiko 6343-660
• Seiko 0762-123
• Seiko 4595-118
• Seiko 7111-959
• Seiko 6655-127
• Seiko 6115-454
• Seiko 6390-367