Seiko Cal. 3818 - 613

Seiko 3818-613

The Seiko 3818-613 represents an important milestone in Seiko's 1983 lineup. Powered by the 3818 caliber with 21j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-1e1be16821ae]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
46mm
Case Thickness
14.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Navy
Jewels
21j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1983

Related Models

seikata-wm-1e1be16821ae