Seiko Cal. 4538 - 661

The 4538-661 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4538 caliber with 17j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-c81e5c14fb21]

Also known as: Bellmatic, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1974

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