Seiko Cal. 4597 - 438

The 4597-438 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4597 caliber with 31j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-2ccd78e3ae38]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1969

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