Seiko Cal. 6284 - 770

Seiko 6284-770

The Seiko 6284-770 represents an important milestone in Seiko's 1971 lineup. Powered by the 6284 caliber with 17j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-d31df7ba38e4]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
8.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
170m
Dial Color
Silver
Jewels
17j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1971

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