Seiko Cal. 4556 - 541

Released in 1972, the Cal. 4556 with design code 541 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-f7bbc4f663c8]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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