Seiko Cal. 0720 - 183

This Spring Drive model from 1997 features a 42mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-60fc76808c27]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1997

Related Models

• Seiko 6176-930
• Seiko 5247-454
• Seiko 7135-677
• Seiko 7188-693
• Seiko 4528-543
• Seiko 7141-371
• Seiko 4550-974
• Seiko 5270-530
• Seiko 0738-318
• Seiko 6134-954
• Seiko 5257-946
• Seiko 3867-790