Seiko Cal. 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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