Seiko Cal. 6656 - 350

This Spring Drive model from 1972 features a 38mm PVD Black case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-147684291ee1]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1972

Related Models

• Seiko 5611-969
• Seiko 6397-620
• Seiko 7052-840
• Seiko 4565-542
• Seiko 6168-383
• Seiko 0773-663
• Seiko 6310-545
• Seiko 6615-309
• Seiko 3837-298
• Seiko 6239-157
• Seiko 5210-368
• Seiko 7070-107