Seiko Cal. 6631 - 621

This Solar model from 1988 features a 45mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-85874c77ad6d]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1988

Related Models

• Seiko 6119-463
• Seiko 4549-453
• Seiko 6148-930
• Seiko 5223-542
• Seiko 6366-645
• Seiko 5658-892
• Seiko 7184-743
• Seiko 6349-858
• Seiko 6662-785
• Seiko 3847-990
• Seiko 6684-775
• Seiko 6697-125