Seiko Cal. 6187 - 728

Seiko 6187-728

This Hand-Winding model from 1972 features a 34mm Two-Tone case. Powered by the 6187 caliber with 22j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-b655123863d0]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
34mm
Case Thickness
15.4mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Black
Jewels
22j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1972

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seikata-wm-b655123863d0