Seiko Cal. 7161 - 231

Released in 1996, the Cal. 7161 with design code 231 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-cda99c54aacf]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1996

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