Seiko Cal. 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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