Seiko Cal. 3877 - 633

This Quartz model from 1991 features a 37mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-0a900a332f3c]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1991

Related Models

• Seiko 4483-651
• Seiko 3889-258
• Seiko 6210-425
• Seiko 5224-878
• Seiko 6655-873
• Seiko 5265-942
• Seiko 6179-553
• Seiko 6226-609
• Seiko 6674-260
• Seiko 6648-731
• Seiko 5292-946
• Seiko 4581-679