Fits and replaces: Seiko 1F20-5D59 Seiko Y150A Seiko Y150-5N90 three year battery life Pulsar Y150-0A50 Casio 381 MG 337 Citizen 5421 S21532 Citizen 5421 Citizen S21532 Bulova Quartz A2 Skagen MA0511 Seiko Steel Dress Ladies Watch model number SYL793, Renata 337, Rayovac 337, SR415SW, Seiko 337, SBA5, Seiko SBA5, Citizen 28075, 28075, Energizer 337, Panasonic SR416SW, Rayovac RW37, Sony SR416SW. Dimensions: 4.8 (mm) diameter x 1.65 (mm) height. This rare battery is one of the smallest watch batteries available.

This Is From The American Watchmakers-Clockmakers Institute 2008 Edition Handbook on Battery Number System. This Battery Is cross Reference As: SR337SW, SONY 337, Energizer 337, WATCH BATTERY 416, Bulova 623 Citizen 280-75 Maxell SR416SW Panasonic SR416SW Rayovac 337 Seiko SR416SW Toshiba SR416SW, Skagen Watches, Bulova Crystal # 96T15, Woman's Skagen watch 590SSLB Skagen,

Movements: Y15, ALBA Y15 ALBA, ALBA CALIBRE Y15, HATYL60, HATYL61, MIY5R21, MIY5R22, MIY5R32, SEK1F20, 1F20, HAT YL60, HAT YL61, MIY 5R21, MIY 5R22, MIY 5R32, SEK 1F20, ENERGIZER WATCH BATTERY # 337, ENERGIZER WATCH BATTERY 337,

MOVEMENT/CALIBRES:

CITIZEN 543 CITIZEN 542 CITIZEN SEIKO 1F20 SEIKO LASSALE 1F20 LASSALE CREDOR 1F20 CREDOR MIYOTA 5R21 MIYOTA 5R21 MIYOTA 5R32 MIYOTA