Seiko Cal. 6616 - 780

Seiko 6616-780

This Spring Drive model from 1973 features a 36mm Gold-Plated case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-91f6900e1ce1]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
60m
Dial Color
Black
Jewels
23j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1973

Related Models

seikata-wm-91f6900e1ce1