Seiko Cal. 4556 - 668

Released in 1975, the Cal. 4556 with design code 668 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-78bfefd7bd64]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1975

Related Models

• Seiko 4558-192
• Seiko 7167-904
• Seiko 6358-654
• Seiko 4499-782
• Seiko 5637-164
• Seiko 5654-165
• Seiko 6310-283
• Seiko 6664-107
• Seiko 4418-333
• Seiko 4418-741
• Seiko 6191-863
• Seiko 4559-319