Seiko Cal. 5611 - 851

This Spring Drive model from 1983 features a 41mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-cdb1ac7daee9]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1983

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