Seiko Cal. 3854 - 916

The 3854-916 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3854 caliber with 34j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-28dccc991ab9]

Also known as: Monster, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1974

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