Seiko Cal. 6366 - 378

Seiko 6366-378

The 6366-378 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-a0b727701a3c]

Also known as: UFO, Sportsmatic

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
42mm
Case Thickness
12.2mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Navy
Jewels
28j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1969

Related Models

seikata-wm-a0b727701a3c