Seiko Cal. 3877 - 990

Released in 1998, the Cal. 3877 with design code 990 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-10020e7142a6]

Also known as: Monster, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1998

Related Models

• Seiko 5275-428
• Seiko 4432-410
• Seiko 7047-699
• Seiko 6335-856
• Seiko 5643-226
• Seiko 5628-478
• Seiko 5233-194
• Seiko 7168-588
• Seiko 0748-962
• Seiko 7149-608
• Seiko 6379-432
• Seiko 4518-155