Seiko Cal. 4537 - 204

The 4537-204 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4537 caliber with 29j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-f131ee5253d8]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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