Seiko Cal. 5639 - 877

The 5639-877 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-e86474e6196b]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

Related Models

• Seiko 6143-659
• Seiko 6378-116
• Seiko 5210-675
• Seiko 7151-635
• Seiko 6288-215
• Seiko 6221-455
• Seiko 0781-180
• Seiko 4515-675
• Seiko 6138-176
• Seiko 4542-940
• Seiko 3821-270
• Seiko 5258-962