Seiko Cal. 6365 - 657

The 6365-657 is a sought-after Solar piece from Seiko's golden era. Powered by the 6365 caliber with 30j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-d207aa007c7d]

Also known as: Bullhead, Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1991

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