Seiko Cal. 6642 - 357

The 6642-357 is a sought-after Solar piece from Seiko's golden era. Powered by the 6642 caliber with 27j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-7273e972c6fb]

Also known as: Bullhead, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1993

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