Seiko Cal. 4456 - 621

This Spring Drive model from 1998 features a 39mm Hardlex-Coated Steel case. Powered by the 4456 caliber with 19j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-cbbf97d0d676]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1998

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