Seiko Cal. 4521 - 916

This Spring Drive model from 1994 features a 37mm Two-Tone case. Powered by the 4521 caliber with 28j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-72c60d954b85]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1994

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