Seiko Cal. 0789 - 644

Seiko 0789-644

This Hand-Winding model from 1971 features a 34mm Titanium case. Powered by the 0789 caliber with 20j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-00ea61a0da43]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
34mm
Case Thickness
8.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Burgundy
Jewels
20j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1971

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seikata-wm-00ea61a0da43