Seiko Cal. 6181 - 561

The 6181-561 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-3bed579903d0]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

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