Seiko Cal. 4550 - 977

The 4550-977 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ba7480659eaa]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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