Seiko Cal. 6631 - 565

Seiko 6631-565

The 6631-565 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6631 caliber with 33j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-36792be51f0b]

Also known as: Tuna, Silverwave

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
15.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Burgundy
Jewels
33j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1986

Related Models

seikata-wm-36792be51f0b