Seiko Cal. 3840 - 453

The 3840-453 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3840 caliber with 21j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-f6a14ec4dee3]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1978

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