Seiko Cal. 6687 - 411

Seiko 6687-411

The 6687-411 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6687 caliber with 36j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-f7eca13f4216]

Also known as: Panda, Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Navy
Jewels
36j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1975

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