Seiko Cal. 4537 - 489

The 4537-489 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-d1ff1430689e]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1990

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