Seiko Cal. 3818 - 178

Seiko 3818-178

The Seiko 3818-178 represents an important milestone in Seiko's 1977 lineup. Powered by the 3818 caliber with 18j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-cbf88d55f75c]

Also known as: World Timer, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
10.4mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1977

Related Models

seikata-wm-cbf88d55f75c