Seiko Cal. 6623 - 431

Seiko 6623-431

The 6623-431 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6623 caliber with 17j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-8f8637398a04]

Also known as: Monster, Bellmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Navy
Jewels
17j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1984

Related Models

seikata-wm-8f8637398a04