Seiko Cal. 4537 - 866

The 4537-866 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4537 caliber with 28j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-86ca520c9d3c]

Also known as: Goldfeather, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1984

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