Seiko Cal. 5618 - 139

The 5618-139 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-194ec92eb3a4]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1971

Related Models

• Seiko 6399-172
• Seiko 6243-518
• Seiko 4581-619
• Seiko 5674-194
• Seiko 5686-590
• Seiko 4554-377
• Seiko 4473-590
• Seiko 5252-743
• Seiko 4469-866
• Seiko 6632-453
• Seiko 5283-478
• Seiko 6135-393