Seiko Cal. 4551 - 410

Released in 1968, the Cal. 4551 with design code 410 was part of Seiko's domestic market collection. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-5cf688ca11c7]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1968

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