Seiko Cal. 6623 - 398

Seiko 6623-398

The Seiko 6623-398 represents an important milestone in Seiko's 1971 lineup. Powered by the 6623 caliber with 17j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-86bdff695af7]

Also known as: Rally, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
12.0mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Navy
Jewels
17j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1971

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