Seiko Cal. 6631 - 743

Seiko 6631-743

The 6631-743 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6631 caliber with 24j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-ea695ce6e007]

Also known as: Rally

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
10.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Black
Jewels
24j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1987

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