Seiko Cal. 6391 - 636

The 6391-636 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-7ad27179eaa1]

Also known as: Panda, Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1994

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