Seiko Cal. 6658 - 820

The Seiko 6658-820 represents an important milestone in Seiko's 1991 lineup. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-d26d55f33ea3]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1991

Related Models

• Seiko 4466-303
• Seiko 4488-916
• Seiko 0748-401
• Seiko 7181-560
• Seiko 5633-404
• Seiko 7122-736
• Seiko 7196-909
• Seiko 6696-672
• Seiko 0712-680
• Seiko 7127-210
• Seiko 6344-196
• Seiko 0777-646