Seiko Cal. 6656 - 380

This Automatic model from 1972 features a 35mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-b3ea99f7ef90]

Also known as: Turtle, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1972

Related Models

• Seiko 3877-815
• Seiko 6371-993
• Seiko 6379-613
• Seiko 7161-135
• Seiko 4473-422
• Seiko 4439-693
• Seiko 6640-376
• Seiko 6648-957
• Seiko 5222-210
• Seiko 0748-397
• Seiko 3853-722
• Seiko 3829-990