Seiko Cal. 5671 - 340

Seiko 5671-340

The 5671-340 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5671 caliber with 34j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-61130567c62a]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Silver
Jewels
34j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1973

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seikata-wm-61130567c62a