Seiko Cal. 6640 - 972

Seiko 6640-972

This Quartz model from 1996 features a 46mm Two-Tone case. Powered by the 6640 caliber with 21j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-4c18015a122a]

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
46mm
Case Thickness
14.8mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Green
Jewels
21j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1996

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seikata-wm-4c18015a122a