Seiko Cal. 0722 - 537

This Spring Drive model from 1995 features a 37mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-80d35ad4a232]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1995

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