Seiko Cal. 6658 - 636

The 6658-636 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6658 caliber with 26j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-c5ce05cd0c1a]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1990

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