Seiko Cal. 6398 - 645

Seiko 6398-645

Released in 1969, the Cal. 6398 with design code 645 was part of Seiko's domestic market collection. Powered by the 6398 caliber with 23j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-94036d2900ce]

Also known as: Goldfeather, Crown

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Green
Jewels
23j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1969

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seikata-wm-94036d2900ce