Seiko Cal. 3818 - 777

Released in 1979, the Cal. 3818 with design code 777 was part of Seiko's domestic market collection. With its 22mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-73bffaf62df0]

Also known as: World Timer, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1979

Related Models

• Seiko 6129-594
• Seiko 5236-568
• Seiko 6243-839
• Seiko 5676-317
• Seiko 6648-231
• Seiko 4451-859
• Seiko 6675-257
• Seiko 6279-205
• Seiko 6157-836
• Seiko 7147-810
• Seiko 6136-608
• Seiko 6644-687