Seiko Cal. 6631 - 173

The 6631-173 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-163db0c1c177]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1994

Related Models

• Seiko 5246-678
• Seiko 4568-290
• Seiko 6116-167
• Seiko 7034-727
• Seiko 6390-583
• Seiko 4529-433
• Seiko 0770-231
• Seiko 7060-687
• Seiko 6143-469
• Seiko 5224-741
• Seiko 5254-916
• Seiko 3820-911