Seiko Cal. 4537 - 707

Released in 1989, the Cal. 4537 with design code 707 was part of Seiko's domestic market collection. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-11a5ca0ae588]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1989

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