Seiko Cal. 6371 - 433

Seiko 6371-433

The 6371-433 is a sought-after Solar piece from Seiko's golden era. Powered by the 6371 caliber with 27j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-7baa165fa62e]

Also known as: Tuna, Helmet

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
41mm
Case Thickness
10.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
40m
Dial Color
Green
Jewels
27j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1998

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