Seiko Cal. 6685 - 490

Seiko 6685-490

The 6685-490 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6685 caliber with 21j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-f1e4cf497987]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
12.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
140m
Dial Color
Navy
Jewels
21j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1975

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