Seiko Cal. 3879 - 743

Seiko 3879-743

The 3879-743 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f4d2521fc30a]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
11.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Green
Jewels
19j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1994

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