Seiko Cal. 6391 - 827

Seiko 6391-827

The 6391-827 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-92bf69241f2f]

Also known as: Helmet, UFO

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
44mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1966

Related Models

seikata-wm-92bf69241f2f