Seiko Cal. 4537 - 551

The 4537-551 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4537 caliber with 29j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-eb390e7e8c57]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1994

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