Seiko Cal. 4456 - 948

The Seiko 4456-948 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-de860e5c96a3]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

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