Seiko Cal. 4548 - 377

The Seiko 4548-377 represents an important milestone in Seiko's 1975 lineup. Powered by the 4548 caliber with 31j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-e17a21b734ca]

Also known as: Silverwave, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1975

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