Seiko Cal. 6321 - 657

Seiko 6321-657

The 6321-657 is a sought-after Solar piece from Seiko's golden era. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-baaf97f6fe29]

Also known as: Monster, Sumo

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
44mm
Case Thickness
9.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
190m
Dial Color
Navy
Jewels
21j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1969

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