Seiko Cal. 4540 - 981

Released in 1991, the Cal. 4540 with design code 981 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-80fa0f7ef1dd]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1991

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